Cleanup/refactor session layer code

Change-Id: Ica99e8cb919fca6b069c37c969d60e8ccc2c6bf9
Signed-off-by: Florin Coras <fcoras@cisco.com>

1 files changed, 101 insertions, 0 deletions

diff --git a/src/vnet/session/session_lookup.h b/src/vnet/session/session_lookup.h
new file mode 100644
index 00000000000..9e92dab1b1d
--- /dev/null
+++ b/src/vnet/session/session_lookup.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SRC_VNET_SESSION_SESSION_LOOKUP_H_
+#define SRC_VNET_SESSION_SESSION_LOOKUP_H_
+
+#include <vnet/session/stream_session.h>
+#include <vnet/session/transport.h>
+
+typedef struct _session_lookup
+{
+  /** Lookup tables for established sessions and listeners */
+  clib_bihash_16_8_t v4_session_hash;
+  clib_bihash_48_8_t v6_session_hash;
+
+  /** Lookup tables for half-open sessions */
+  clib_bihash_16_8_t v4_half_open_hash;
+  clib_bihash_48_8_t v6_half_open_hash;
+} session_lookup_t;
+
+stream_session_t *stream_session_lookup_listener4 (ip4_address_t * lcl,
+						   u16 lcl_port, u8 proto);
+stream_session_t *stream_session_lookup4 (ip4_address_t * lcl,
+					  ip4_address_t * rmt, u16 lcl_port,
+					  u16 rmt_port, u8 proto);
+stream_session_t *stream_session_lookup_listener6 (ip6_address_t * lcl,
+						   u16 lcl_port, u8 proto);
+stream_session_t *stream_session_lookup6 (ip6_address_t * lcl,
+					  ip6_address_t * rmt, u16 lcl_port,
+					  u16 rmt_port, u8 proto);
+transport_connection_t *stream_session_lookup_transport_wt4 (ip4_address_t *
+							     lcl,
+							     ip4_address_t *
+							     rmt,
+							     u16 lcl_port,
+							     u16 rmt_port,
+							     u8 proto,
+							     u32
+							     thread_index);
+transport_connection_t *stream_session_lookup_transport4 (ip4_address_t * lcl,
+							  ip4_address_t * rmt,
+							  u16 lcl_port,
+							  u16 rmt_port,
+							  u8 proto);
+transport_connection_t *stream_session_lookup_transport_wt6 (ip6_address_t *
+							     lcl,
+							     ip6_address_t *
+							     rmt,
+							     u16 lcl_port,
+							     u16 rmt_port,
+							     u8 proto,
+							     u32
+							     thread_index);
+transport_connection_t *stream_session_lookup_transport6 (ip6_address_t * lcl,
+							  ip6_address_t * rmt,
+							  u16 lcl_port,
+							  u16 rmt_port,
+							  u8 proto);
+
+stream_session_t *stream_session_lookup_listener (ip46_address_t * lcl,
+						  u16 lcl_port, u8 proto);
+u64 stream_session_half_open_lookup_handle (ip46_address_t * lcl,
+					    ip46_address_t * rmt,
+					    u16 lcl_port,
+					    u16 rmt_port, u8 proto);
+transport_connection_t *stream_session_half_open_lookup (ip46_address_t * lcl,
+							 ip46_address_t * rmt,
+							 u16 lcl_port,
+							 u16 rmt_port,
+							 u8 proto);
+void stream_session_table_add_for_tc (transport_connection_t * tc, u64 value);
+int stream_session_table_del_for_tc (transport_connection_t * tc);
+int stream_session_table_del (stream_session_t * s);
+void stream_session_half_open_table_del (u8 sst, transport_connection_t * tc);
+void stream_session_half_open_table_add (session_type_t sst,
+					 transport_connection_t * tc,
+					 u64 value);
+
+void session_lookup_init (void);
+
+#endif /* SRC_VNET_SESSION_SESSION_LOOKUP_H_ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */